A Los Angeles County sheriff’s deputy and a former member of the force, along with a custody assistant, were ordered recently to stand trial on charges stemming from the assault of jail inmates in Compton and Los Angeles. Deputy Jermaine W. Jackson, 36, is charged with three counts each of assault by means likely to produce great bodily injury, assault by a public officer and filing a false report. He is accused of assaulting three inmates, Cesar Campana, Derek Griscavage and Jonathan Murray, in separate incidents between 2009 and 2011.

Former sheriff’s deputy Karin Ann Cring, 32, is charged with filing a false report to cover up the Christmas Day 2010 beating of Griscavage at the Twin Towers Correctional Facility. Custody assistant Jayson Ellis, 26, is charged with one count of assault by means likely to produce great bodily injury in the attack on Griscavage. All three have pleaded not guilty to the charges, which came after an internal investigation by the Sheriff’s Department, and are due back in court on June 3 for arraignment.

At least 20 other deputies or former deputies have been indicted in federal court on civil rights or corruption offenses. Many are alleged to have been involved in assaults or covering up assaults in the jails.